A4696512
Hydroiodic acid , 55.0-58.0%, containing ≤1.5%H3PO2 stabilizer , 10034-85-2
Synonym(s):
Hydriotic acid;Hydrogen iodide solution
CAS NO.：10034-85-2
Empirical Formula: HI
Molecular Weight: 127.91
MDL number: MFCD00011347
EINECS: 233-109-9
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | -50.8° |
| Boiling point: | 127 °C(lit.) |
| Density | 1.96 g/mL at 20 °C |
| vapor pressure | 721.8kPa at 20℃ |
| Flash point: | 126-127°C |
| storage temp. | 2-8°C |
| solubility | very soluble in H2O; soluble in organic solvents |
| pka | -10(at 25℃) |
| form | colorless or yellow gas |
| color | Colorless to brown |
| Odor | Pungent odor |
| PH Range | 1 |
| PH | 3.01(1 mM solution);2.04(10 mM solution);1.08(100 mM solution) |
| Water Solubility | soluble |
| Sensitive | Hygroscopic |
| Merck | 14,4776 |
| Dielectric constant | 3.4（-50℃） |
| Exposure limits | ACGIH: TWA 0.01 ppm |
| Stability: | Stable. Incompatible with bases, amines. Corrodes steel. May discolour on exposure to air and light. |
Description and Uses
‘Iodine’ is derived from iodes, a Greek word meaning violet. It is a member of the halide family and hydrogen iodide is considered a strong acid.
Reducing agent, manufacture of inorganic iodides, pharmaceuticals, disinfectants. The 57% acid is also used for analytical purposes, such as methoxyl determinations.
Safety
| Symbol(GHS) |   GHS05,GHS09 |
| Signal word | Danger |
| Hazard statements | H290-H314-H411 |
| Precautionary statements | P234-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 |
| Hazard Codes | C |
| Risk Statements | 34-35 |
| Safety Statements | 26-36/37/39-45-9 |
| RIDADR | UN 1787 8/PG 2 |
| WGK Germany | - |
| RTECS | MW3760000 |
| F | 8 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | II |
| HS Code | 28111990 |
